This set of true wireless bluetooth earbuds by #iporachx work extremely well. I love how they have an ear hook to keep them in place compared with other true wireless earbuds. It has 56 hours of playtime and they are waterproof for singing in the shower. I wouldn't submerge them though. I like how they stayed on my head while working out in the house and from that I can assume it will work even better while at the gym as I tend to get crazier at home than at the gym. at only $39.99 they're highly affordable compared to other brands and in my honest opinion work almost as well as the higher priced brands. For what you pay they sync well, paired welll with my Samsung Galaxy S8, my grandson's iPhone 8, and my daughter's iPhone 11Pro Max. That said I'm sure it will work well on most phones. At under $40 these will do the job. Are they the absolute best money can buy? No, but they're definitely well worth the price paid for this set.